Methods, apparatus, and articles of manufacture for using location information to manage spillover in an audience monitoring system are disclosed. In particular, the example methods, apparatus, and articles of manufacture detect spillover to generate media monitoring information. Initially, a first sensor located in a first location and a second sensor located in a second location receive a portable metering device signal. First location information is associated with receiving the portable metering device signal via the first sensor and second location information is associated with receiving the portable metering device signal via the second sensor. Media monitoring information is generated based on one of the first location information or the second location information.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A method to determine the location of an audience member to generate media monitoring information, comprising: receiving a portable metering device signal via a first sensor located in a first location and a second sensor located in a second location; associating first location information with receiving the portable metering device signal via the first sensor and second location information with receiving the portable metering device signal via the second sensor; generating media monitoring information based on at least the first location information; and identifying the media monitoring information as being associated with a spillover signal in response to determining that a media delivery device is not located in a first room indicated by the first location information, wherein the spillover signal is indicative of a media presentation presented in a second room and detected by a portable metering device located in the first room, and wherein the media monitoring information being associated with the spillover signal indicates that an audience member associated with the portable metering device was not sufficiently exposed to the media presentation to indicate consumption of the media presentation.
2. A method as defined in claim 1 , wherein generating the media monitoring information includes generating media identification information.
3. A method as defined in claim 2 , wherein the media identification information identifies at least one of a video presentation or an audio presentation.
4. A method as defined in claim 3 , wherein the media identification information includes at least one of an ancillary code embedded in the video presentation or the audio presentation or a signature corresponding to the video presentation or the audio presentation.
5. A method as defined in claim 1 , further comprising determining a first signal characteristic associated with receiving the portable metering device signal via the first sensor and a second signal characteristic associated with receiving the portable metering device signal via the second sensor.
6. A method as defined in claim 5 , wherein generating the media monitoring information based on the first location information comprises comparing the first signal characteristic to the second signal characteristic and selecting the first location information based on the comparison.
7. A method as defined in claim 6 , wherein the first and second signal characteristics are signal power values.
8. A method as defined in claim 1 , further comprising obtaining portable metering device identification information from the portable metering device signal and generating the media monitoring information based on the portable metering device identification information.
9. A method as defined in claim 1 , wherein the portable metering device signal is an ultrasound signal.
10. A method as defined in claim 1 , wherein the media delivery device is a television or a radio.
11. A method as defined in claim 1 , further comprising receiving the portable metering device signal via the first and second sensors substantially simultaneously.
12. A method as defined in claim 1 , wherein the media monitoring information is indicative of the audience member's exposure to the media presentation.
13. A system to determine the location of an audience member to generate media monitoring information, comprising: a first sensor in a first location to receive a portable device signal; a second sensor in a second location to receive the portable device signal; a data collector coupled to the first and second sensors and configured to receive first location information associated with receiving the portable device signal via the first sensor and second location information associated with receiving the portable device signal via the second sensor and to select one of the first location information or the second location information; and a processor to generate media monitoring information based on the selected location information, wherein the processor is configured to identify the media monitoring information as spillover in response to determining that a media delivery device is not located in a first room indicated by the selected location information, wherein the spillover is indicative of a media presentation presented in a second room and detected by a portable device located in the first room, and wherein the spillover indicates that an audience member associated with the portable device was not sufficiently exposed to the media presentation to indicate consumption of the media presentation.
14. A system as defined in claim 13 , wherein the processor is configured to receive media identification information from the portable device and generate the media monitoring information based on the media identification information.
15. A system as defined in claim 14 , wherein the media identification information identifies at least one of a video presentation or an audio presentation.
16. A system as defined in claim 15 , wherein the media identification information includes at least one of an ancillary code embedded in the video presentation or the audio presentation or a signature corresponding to the video presentation or the audio presentation.
17. A system as defined in claim 13 , wherein the first sensor is configured to determine a first signal characteristic associated with receiving the portable device signal and the second sensor is configured to determine a second signal characteristic associated with receiving the portable device signal.
18. A system as defined in claim 17 , wherein the data collector is configured to compare the first signal characteristic with the second signal characteristic and select one of the first location information or the second location information based on the comparison.
19. A system as defined in claim 18 , wherein the first and second signal characteristics are signal power values.
20. A system as defined in claim 13 , wherein the first and second sensors are configured to obtain first portable device identification information from the portable device signal, and wherein the processor is configured to associate the selected location information with media identification information received from the portable device based on the first portable device identification information and second portable device identification information associated with the selected location information and generate the media monitoring information based on the associated location information and media identification information.
21. A system as defined in claim 13 , wherein the media delivery device is a television or a radio.
22. A system as defined in claim 13 , wherein the portable device signal is an ultrasound signal.
23. A system as defined in claim 13 , wherein the data collector is to select one of the first location information or the second location information by: comparing a first signal strength associated with receiving the portable device signal via the first sensor to a second signal strength associated with receiving the portable device signal via the second sensor; and selecting the one of the first location information or the second location information associated with the stronger signal strength; and wherein the processor is configured to indicate consumption of the media presentation in response to determining that the media presentation was presented in the first room indicated by the selected location information when the portable device signal was received via the first and second sensors.
24. A system as defined in claim 13 , wherein the first and second sensors receive the portable device signal substantially simultaneously.
25. A system as defined in claim 13 , wherein the media monitoring information is indicative of the audience member's exposure to the media presentation.
26. A machine accessible medium having instructions stored thereon that, when executed, cause a machine to: receive first location information associated with receiving a portable device signal via a first sensor in a first location and second location information associated with receiving the portable device signal via a second sensor in a second location; select one of the first location information or the second location information; generate media monitoring information based on the selected location information; and identify the media monitoring information as spillover in response to determining that a media delivery device is not located in a first room indicated by the selected location information, wherein the spillover is indicative of a media presentation presented in a second room and detected by a portable device located in the first room, and wherein the spillover indicates that an audience member associated with the portable device was not sufficiently exposed to the media presentation to indicate consumption of the media presentation.
27. A machine accessible medium as defined in claim 26 having instructions stored thereon that, when executed, cause the machine to receive media identification information from the portable device and generate the media monitoring information based on the media identification information.
28. A machine accessible medium as defined in claim 27 wherein the media identification information includes at least one of an ancillary code embedded in a video presentation or an audio presentation or a signature corresponding to the video presentation or the audio presentation.
29. A machine accessible medium as defined in claim 26 having instructions stored thereon that, when executed, cause the machine to: select one of the first location information or the second location information by: comparing a first signal strength associated with receiving the portable device signal via the first sensor to a second signal strength associated with receiving the portable device signal via the second sensor; and selecting the one of the first location information or the second location information associated with the stronger signal strength; and indicate consumption of the media presentation in response to determining that the media presentation was presented in the first room indicated by the selected location information when the portable device signal was received via the first and second sensors.
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March 27, 2007
June 15, 2010
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